sand lance vs sand eel

sand lance and sand eel both are nouns.

Word	Noun	Adjective	Verb	Adverb
sand lance	Yes	No	No	No
sand eel	Yes	No	No	No

As nouns, sand lance and sand eel are synonyms defined as:

sand lance and sand eel: very small silvery eellike schooling fishes that burrow into sandy beaches

Other synonyms of sand lance include launce, sand launce.

sand lance (noun)	sand eel (noun)
very small silvery eellike schooling fishes that burrow into sandy beaches	very small silvery eellike schooling fishes that burrow into sandy beaches